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<title>4.1.5 部署master节点 · Kubernetes Handbook</title>
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<li class="chapter " data-level="1.1" data-path="../">
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1. 前言
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<li class="chapter " data-level="1.2" data-path="../concepts/">
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<a href="../concepts/">
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2. 概念原理
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<a href="../concepts/concepts.html">
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2.1 设计理念
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</a>
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<li class="chapter " data-level="1.2.2" data-path="../concepts/objects.html">
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<a href="../concepts/objects.html">
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2.2 Objects
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</a>
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<ul class="articles">
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<li class="chapter " data-level="1.2.2.1" data-path="../concepts/pod-overview.html">
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<a href="../concepts/pod-overview.html">
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2.2.1 Pod
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</a>
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<ul class="articles">
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<li class="chapter " data-level="1.2.2.1.1" data-path="../concepts/pod.html">
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<a href="../concepts/pod.html">
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2.2.1.1 Pod解析
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</a>
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<li class="chapter " data-level="1.2.2.1.2" data-path="../concepts/init-containers.html">
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<a href="../concepts/init-containers.html">
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2.2.1.2 Init容器
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.1.3" data-path="../concepts/pod-security-policy.html">
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<a href="../concepts/pod-security-policy.html">
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2.2.1.3 Pod安全策略
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="1.2.2.2" data-path="../concepts/node.html">
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<a href="../concepts/node.html">
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2.2.2 Node
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.3" data-path="../concepts/namespace.html">
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<a href="../concepts/namespace.html">
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2.2.3 Namespace
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.4" data-path="../concepts/service.html">
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<a href="../concepts/service.html">
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2.2.4 Service
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.5" data-path="../concepts/volume.html">
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<a href="../concepts/volume.html">
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2.2.5 Volume和Persistent Volume
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.6" data-path="../concepts/deployment.html">
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<a href="../concepts/deployment.html">
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2.2.6 Deployment
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.7" data-path="../concepts/secret.html">
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<a href="../concepts/secret.html">
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2.2.7 Secret
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.8" data-path="../concepts/statefulset.html">
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<a href="../concepts/statefulset.html">
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2.2.8 StatefulSet
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.9" data-path="../concepts/daemonset.html">
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<a href="../concepts/daemonset.html">
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2.2.9 DaemonSet
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.10" data-path="../concepts/serviceaccount.html">
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<a href="../concepts/serviceaccount.html">
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2.2.10 ServiceAccount
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.11" data-path="../concepts/replicaset.html">
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<a href="../concepts/replicaset.html">
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2.2.11 ReplicationController和ReplicaSet
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.12" data-path="../concepts/job.html">
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<a href="../concepts/job.html">
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2.2.12 Job
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.13" data-path="../concepts/cronjob.html">
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<a href="../concepts/cronjob.html">
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2.2.13 CronJob
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.14" data-path="../concepts/ingress.html">
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<a href="../concepts/ingress.html">
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2.2.14 Ingress
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.15" data-path="../concepts/configmap.html">
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<a href="../concepts/configmap.html">
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2.2.15 ConfigMap
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</a>
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</li>
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<li class="chapter " data-level="1.2.2.16" data-path="../concepts/horizontal-pod-autoscaling.html">
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<a href="../concepts/horizontal-pod-autoscaling.html">
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2.2.16 Horizontal Pod Autoscaling
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||
</a>
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||
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</li>
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<li class="chapter " data-level="1.2.2.17" data-path="../concepts/label.html">
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||
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<a href="../concepts/label.html">
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2.2.17 Label
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||
</a>
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||
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</li>
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<li class="chapter " data-level="1.2.2.18" data-path="../concepts/garbage-collection.html">
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<a href="../concepts/garbage-collection.html">
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||
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2.2.18 垃圾收集
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|
||
</a>
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</li>
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<li class="chapter " data-level="1.2.2.19" data-path="../concepts/network-policy.html">
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<a href="../concepts/network-policy.html">
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2.2.19 NetworkPolicy
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</a>
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</li>
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</ul>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="1.3" data-path="../guide/">
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<a href="../guide/">
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3. 用户指南
|
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||
</a>
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<ul class="articles">
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<li class="chapter " data-level="1.3.1" data-path="../guide/resource-configuration.html">
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<a href="../guide/resource-configuration.html">
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3.1 资源配置
|
||
|
||
</a>
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||
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<ul class="articles">
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|
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<li class="chapter " data-level="1.3.1.1" data-path="../guide/configure-liveness-readiness-probes.html">
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<a href="../guide/configure-liveness-readiness-probes.html">
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3.1.1 配置Pod的liveness和readiness探针
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||
</a>
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||
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||
</li>
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<li class="chapter " data-level="1.3.1.2" data-path="../guide/configure-pod-service-account.html">
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||
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<a href="../guide/configure-pod-service-account.html">
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3.1.2 配置Pod的Service Account
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||
|
||
</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="1.3.2" data-path="../guide/command-usage.html">
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<a href="../guide/command-usage.html">
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3.2 命令使用
|
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||
</a>
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||
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<ul class="articles">
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||
|
||
|
||
<li class="chapter " data-level="1.3.2.1" data-path="../guide/using-kubectl.html">
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||
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<a href="../guide/using-kubectl.html">
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3.2.1 使用kubectl
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||
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||
</a>
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||
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||
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</li>
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|
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</ul>
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</li>
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<li class="chapter " data-level="1.3.3" data-path="../guide/cluster-security-management.html">
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||
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||
<a href="../guide/cluster-security-management.html">
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||
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3.3 集群安全性管理
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||
</a>
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||
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<ul class="articles">
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||
|
||
|
||
<li class="chapter " data-level="1.3.3.1" data-path="../guide/managing-tls-in-a-cluster.html">
|
||
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||
<a href="../guide/managing-tls-in-a-cluster.html">
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3.3.1 管理集群中的TLS
|
||
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||
</a>
|
||
|
||
|
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|
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</li>
|
||
|
||
<li class="chapter " data-level="1.3.3.2" data-path="../guide/kubelet-authentication-authorization.html">
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||
|
||
<a href="../guide/kubelet-authentication-authorization.html">
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||
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3.3.2 kubelet的认证授权
|
||
|
||
</a>
|
||
|
||
|
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||
</li>
|
||
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||
<li class="chapter " data-level="1.3.3.3" data-path="../guide/tls-bootstrapping.html">
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||
|
||
<a href="../guide/tls-bootstrapping.html">
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||
|
||
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||
3.3.3 TLS bootstrap
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.3.4" data-path="../guide/kubectl-user-authentication-authorization.html">
|
||
|
||
<a href="../guide/kubectl-user-authentication-authorization.html">
|
||
|
||
|
||
3.3.4 kubectl的用户认证授权
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.3.5" data-path="../guide/rbac.html">
|
||
|
||
<a href="../guide/rbac.html">
|
||
|
||
|
||
3.3.5 RBAC——基于角色的访问控制
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.3.6" data-path="../guide/ip-masq-agent.html">
|
||
|
||
<a href="../guide/ip-masq-agent.html">
|
||
|
||
|
||
3.3.6 IP伪装代理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.4" data-path="../guide/access-kubernetes-cluster.html">
|
||
|
||
<a href="../guide/access-kubernetes-cluster.html">
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||
|
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|
||
3.4 访问 Kubernetes 集群
|
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|
||
</a>
|
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|
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|
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|
||
<ul class="articles">
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||
|
||
|
||
<li class="chapter " data-level="1.3.4.1" data-path="../guide/access-cluster.html">
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||
|
||
<a href="../guide/access-cluster.html">
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|
||
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3.4.1 访问集群
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||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.4.2" data-path="../guide/authenticate-across-clusters-kubeconfig.html">
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||
|
||
<a href="../guide/authenticate-across-clusters-kubeconfig.html">
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||
|
||
|
||
3.4.2 使用 kubeconfig 文件配置跨集群认证
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.4.3" data-path="../guide/connecting-to-applications-port-forward.html">
|
||
|
||
<a href="../guide/connecting-to-applications-port-forward.html">
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||
|
||
|
||
3.4.3 通过端口转发访问集群中的应用程序
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.4.4" data-path="../guide/service-access-application-cluster.html">
|
||
|
||
<a href="../guide/service-access-application-cluster.html">
|
||
|
||
|
||
3.4.4 使用 service 访问群集中的应用程序
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.5" data-path="../guide/application-development-deployment-flow.html">
|
||
|
||
<a href="../guide/application-development-deployment-flow.html">
|
||
|
||
|
||
3.5 在kubernetes中开发部署应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.3.5.1" data-path="../guide/deploy-applications-in-kubernetes.html">
|
||
|
||
<a href="../guide/deploy-applications-in-kubernetes.html">
|
||
|
||
|
||
3.5.1 适用于kubernetes的应用开发部署流程
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.3.5.2" data-path="../guide/migrating-hadoop-yarn-to-kubernetes.html">
|
||
|
||
<a href="../guide/migrating-hadoop-yarn-to-kubernetes.html">
|
||
|
||
|
||
3.5.2 迁移传统应用到kubernetes中——以Hadoop YARN为例
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4" data-path="./">
|
||
|
||
<a href="./">
|
||
|
||
|
||
4. 最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.1" data-path="install-kbernetes1.6-on-centos.html">
|
||
|
||
<a href="install-kbernetes1.6-on-centos.html">
|
||
|
||
|
||
4.1 在CentOS上部署kubernetes1.6集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.1.1" data-path="create-tls-and-secret-key.html">
|
||
|
||
<a href="create-tls-and-secret-key.html">
|
||
|
||
|
||
4.1.1 创建TLS证书和秘钥
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.2" data-path="create-kubeconfig.html">
|
||
|
||
<a href="create-kubeconfig.html">
|
||
|
||
|
||
4.1.2 创建kubeconfig文件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.3" data-path="etcd-cluster-installation.html">
|
||
|
||
<a href="etcd-cluster-installation.html">
|
||
|
||
|
||
4.1.3 创建高可用etcd集群
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.4" data-path="kubectl-installation.html">
|
||
|
||
<a href="kubectl-installation.html">
|
||
|
||
|
||
4.1.4 安装kubectl命令行工具
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter active" data-level="1.4.1.5" data-path="master-installation.html">
|
||
|
||
<a href="master-installation.html">
|
||
|
||
|
||
4.1.5 部署master节点
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.6" data-path="node-installation.html">
|
||
|
||
<a href="node-installation.html">
|
||
|
||
|
||
4.1.6 部署node节点
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.7" data-path="kubedns-addon-installation.html">
|
||
|
||
<a href="kubedns-addon-installation.html">
|
||
|
||
|
||
4.1.7 安装kubedns插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.8" data-path="dashboard-addon-installation.html">
|
||
|
||
<a href="dashboard-addon-installation.html">
|
||
|
||
|
||
4.1.8 安装dashboard插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.9" data-path="heapster-addon-installation.html">
|
||
|
||
<a href="heapster-addon-installation.html">
|
||
|
||
|
||
4.1.9 安装heapster插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.1.10" data-path="efk-addon-installation.html">
|
||
|
||
<a href="efk-addon-installation.html">
|
||
|
||
|
||
4.1.10 安装EFK插件
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2" data-path="service-discovery-and-loadbalancing.html">
|
||
|
||
<a href="service-discovery-and-loadbalancing.html">
|
||
|
||
|
||
4.2 服务发现与负载均衡
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.2.1" data-path="traefik-ingress-installation.html">
|
||
|
||
<a href="traefik-ingress-installation.html">
|
||
|
||
|
||
4.2.1 安装Traefik ingress
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2.2" data-path="distributed-load-test.html">
|
||
|
||
<a href="distributed-load-test.html">
|
||
|
||
|
||
4.2.2 分布式负载测试
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2.3" data-path="network-and-cluster-perfermance-test.html">
|
||
|
||
<a href="network-and-cluster-perfermance-test.html">
|
||
|
||
|
||
4.2.3 网络和集群性能测试
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.2.4" data-path="edge-node-configuration.html">
|
||
|
||
<a href="edge-node-configuration.html">
|
||
|
||
|
||
4.2.4 边缘节点配置
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3" data-path="operation.html">
|
||
|
||
<a href="operation.html">
|
||
|
||
|
||
4.3 运维管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.3.1" data-path="service-rolling-update.html">
|
||
|
||
<a href="service-rolling-update.html">
|
||
|
||
|
||
4.3.1 服务滚动升级
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.2" data-path="app-log-collection.html">
|
||
|
||
<a href="app-log-collection.html">
|
||
|
||
|
||
4.3.2 应用日志收集
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.3" data-path="configuration-best-practice.html">
|
||
|
||
<a href="configuration-best-practice.html">
|
||
|
||
|
||
4.3.3 配置最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.4" data-path="monitor.html">
|
||
|
||
<a href="monitor.html">
|
||
|
||
|
||
4.3.4 集群及应用监控
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.5" data-path="jenkins-ci-cd.html">
|
||
|
||
<a href="jenkins-ci-cd.html">
|
||
|
||
|
||
4.3.5 使用Jenkins进行持续构建与发布
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.6" data-path="data-persistence-problem.html">
|
||
|
||
<a href="data-persistence-problem.html">
|
||
|
||
|
||
4.3.6 数据持久化问题
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.3.7" data-path="manage-compute-resources-container.html">
|
||
|
||
<a href="manage-compute-resources-container.html">
|
||
|
||
|
||
4.3.7 管理容器的计算资源
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4" data-path="storage.html">
|
||
|
||
<a href="storage.html">
|
||
|
||
|
||
4.4 存储管理
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.4.1" data-path="glusterfs.html">
|
||
|
||
<a href="glusterfs.html">
|
||
|
||
|
||
4.4.1 GlusterFS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.4.1.1" data-path="using-glusterfs-for-persistent-storage.html">
|
||
|
||
<a href="using-glusterfs-for-persistent-storage.html">
|
||
|
||
|
||
4.4.1.1 使用GlusterFS做持久化存储
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4.1.2" data-path="storage-for-containers-using-glusterfs-with-openshift.html">
|
||
|
||
<a href="storage-for-containers-using-glusterfs-with-openshift.html">
|
||
|
||
|
||
4.4.1.2 在OpenShift中使用GlusterFS做持久化存储
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.4.4.2" data-path="cephfs.html">
|
||
|
||
<a href="cephfs.html">
|
||
|
||
|
||
4.4.2 CephFS
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.4.4.2.1" data-path="using-ceph-for-persistent-storage.html">
|
||
|
||
<a href="using-ceph-for-persistent-storage.html">
|
||
|
||
|
||
4.4.2.1 使用Ceph做持久化存储
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5" data-path="../usecases/">
|
||
|
||
<a href="../usecases/">
|
||
|
||
|
||
5. 领域应用
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1" data-path="../usecases/microservices.html">
|
||
|
||
<a href="../usecases/microservices.html">
|
||
|
||
|
||
5.1 微服务架构
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1.1" data-path="../usecases/istio.html">
|
||
|
||
<a href="../usecases/istio.html">
|
||
|
||
|
||
5.1.1 Istio
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1.1.1" data-path="../usecases/istio-installation.html">
|
||
|
||
<a href="../usecases/istio-installation.html">
|
||
|
||
|
||
5.1.1.1 安装istio
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.1.2" data-path="../usecases/configuring-request-routing.html">
|
||
|
||
<a href="../usecases/configuring-request-routing.html">
|
||
|
||
|
||
5.1.1.2 配置请求的路由规则
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.2" data-path="../usecases/linkerd.html">
|
||
|
||
<a href="../usecases/linkerd.html">
|
||
|
||
|
||
5.1.2 Linkerd
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.1.2.1" data-path="../usecases/linkerd-user-guide.html">
|
||
|
||
<a href="../usecases/linkerd-user-guide.html">
|
||
|
||
|
||
5.1.2.1 Linkerd 使用指南
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.1.3" data-path="../usecases/service-discovery-in-microservices.html">
|
||
|
||
<a href="../usecases/service-discovery-in-microservices.html">
|
||
|
||
|
||
5.1.3 微服务中的服务发现
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2" data-path="../usecases/big-data.html">
|
||
|
||
<a href="../usecases/big-data.html">
|
||
|
||
|
||
5.2 大数据
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.5.2.1" data-path="../usecases/spark-standalone-on-kubernetes.html">
|
||
|
||
<a href="../usecases/spark-standalone-on-kubernetes.html">
|
||
|
||
|
||
5.2.1 Spark standalone on Kubernetes
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.2.2" data-path="../usecases/running-spark-with-kubernetes-native-scheduler.html">
|
||
|
||
<a href="../usecases/running-spark-with-kubernetes-native-scheduler.html">
|
||
|
||
|
||
5.2.2 运行支持kubernetes原生调度的Spark程序
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.5.3" data-path="../usecases/serverless.html">
|
||
|
||
<a href="../usecases/serverless.html">
|
||
|
||
|
||
5.3 Serverless架构
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6" data-path="../develop/">
|
||
|
||
<a href="../develop/">
|
||
|
||
|
||
6. 开发指南
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.6.1" data-path="../develop/developing-environment.html">
|
||
|
||
<a href="../develop/developing-environment.html">
|
||
|
||
|
||
6.1 开发环境搭建
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.2" data-path="../develop/testing.html">
|
||
|
||
<a href="../develop/testing.html">
|
||
|
||
|
||
6.2 单元测试和集成测试
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.3" data-path="../develop/client-go-sample.html">
|
||
|
||
<a href="../develop/client-go-sample.html">
|
||
|
||
|
||
6.3 client-go示例
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.6.4" data-path="../develop/contribute.html">
|
||
|
||
<a href="../develop/contribute.html">
|
||
|
||
|
||
6.4 社区贡献
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7" data-path="../appendix/">
|
||
|
||
<a href="../appendix/">
|
||
|
||
|
||
7. 附录
|
||
|
||
</a>
|
||
|
||
|
||
|
||
<ul class="articles">
|
||
|
||
|
||
<li class="chapter " data-level="1.7.1" data-path="../appendix/docker-best-practice.html">
|
||
|
||
<a href="../appendix/docker-best-practice.html">
|
||
|
||
|
||
7.1 Docker最佳实践
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7.2" data-path="../appendix/issues.html">
|
||
|
||
<a href="../appendix/issues.html">
|
||
|
||
|
||
7.2 问题记录
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
<li class="chapter " data-level="1.7.3" data-path="../appendix/tricks.html">
|
||
|
||
<a href="../appendix/tricks.html">
|
||
|
||
|
||
7.3 使用技巧
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
</ul>
|
||
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li class="divider"></li>
|
||
|
||
<li>
|
||
<a href="https://www.gitbook.com" target="blank" class="gitbook-link">
|
||
本書使用 GitBook 釋出
|
||
</a>
|
||
</li>
|
||
</ul>
|
||
|
||
|
||
</nav>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="book-body">
|
||
|
||
<div class="body-inner">
|
||
|
||
|
||
|
||
<div class="book-header" role="navigation">
|
||
|
||
|
||
<!-- Title -->
|
||
<h1>
|
||
<i class="fa fa-circle-o-notch fa-spin"></i>
|
||
<a href=".." >4.1.5 部署master节点</a>
|
||
</h1>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<div class="page-wrapper" tabindex="-1" role="main">
|
||
<div class="page-inner">
|
||
|
||
<div class="search-plus" id="book-search-results">
|
||
<div class="search-noresults">
|
||
|
||
<section class="normal markdown-section">
|
||
|
||
<h1 id="部署master节点">部署master节点</h1>
|
||
<p>kubernetes master 节点包含的组件：</p>
|
||
<ul>
|
||
<li>kube-apiserver</li>
|
||
<li>kube-scheduler</li>
|
||
<li>kube-controller-manager</li>
|
||
</ul>
|
||
<p>目前这三个组件需要部署在同一台机器上。</p>
|
||
<ul>
|
||
<li><code>kube-scheduler</code>、<code>kube-controller-manager</code> 和 <code>kube-apiserver</code> 三者的功能紧密相关；</li>
|
||
<li>同时只能有一个 <code>kube-scheduler</code>、<code>kube-controller-manager</code> 进程处于工作状态，如果运行多个，则需要通过选举产生一个 leader；</li>
|
||
</ul>
|
||
<p><del>本文档记录部署一个三个节点的高可用 kubernetes master 集群步骤。（后续创建一个 load balancer 来代理访问 kube-apiserver 的请求）</del></p>
|
||
<p>暂时未实现master节点的高可用。</p>
|
||
<h2 id="tls-证书文件">TLS 证书文件</h2>
|
||
<p>pem和token.csv证书文件我们在<a href="01-TLS证书和秘钥.md">TLS证书和秘钥</a>这一步中已经创建过了。我们再检查一下。</p>
|
||
<pre><code class="lang-bash">$ ls /etc/kubernetes/ssl
|
||
admin-key.pem admin.pem ca-key.pem ca.pem kube-proxy-key.pem kube-proxy.pem kubernetes-key.pem kubernetes.pem
|
||
</code></pre>
|
||
<h2 id="下载最新版本的二进制文件">下载最新版本的二进制文件</h2>
|
||
<p>有两种下载方式</p>
|
||
<p><strong>方式一</strong></p>
|
||
<p>从 <a href="https://github.com/kubernetes/kubernetes/releases" target="_blank">github release 页面</a> 下载发布版 tarball，解压后再执行下载脚本</p>
|
||
<pre><code class="lang-shell">wget https://github.com/kubernetes/kubernetes/releases/download/v1.6.0/kubernetes.tar.gz
|
||
tar -xzvf kubernetes.tar.gz
|
||
cd kubernetes
|
||
./cluster/get-kube-binaries.sh
|
||
</code></pre>
|
||
<p><strong>方式二</strong></p>
|
||
<p>从 <a href="https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG.md" target="_blank"><code>CHANGELOG</code>页面</a> 下载 <code>client</code> 或 <code>server</code> tarball 文件</p>
|
||
<p><code>server</code> 的 tarball <code>kubernetes-server-linux-amd64.tar.gz</code> 已经包含了 <code>client</code>(<code>kubectl</code>) 二进制文件，所以不用单独下载<code>kubernetes-client-linux-amd64.tar.gz</code>文件；</p>
|
||
<pre><code class="lang-shell"># wget https://dl.k8s.io/v1.6.0/kubernetes-client-linux-amd64.tar.gz
|
||
wget https://dl.k8s.io/v1.6.0/kubernetes-server-linux-amd64.tar.gz
|
||
tar -xzvf kubernetes-server-linux-amd64.tar.gz
|
||
cd kubernetes
|
||
tar -xzvf kubernetes-src.tar.gz
|
||
</code></pre>
|
||
<p>将二进制文件拷贝到指定路径</p>
|
||
<pre><code class="lang-bash">cp -r server/bin/{kube-apiserver,kube-controller-manager,kube-scheduler,kubectl,kube-proxy,kubelet} /usr/<span class="hljs-built_in">local</span>/bin/
|
||
</code></pre>
|
||
<h2 id="配置和启动-kube-apiserver">配置和启动 kube-apiserver</h2>
|
||
<p><strong>创建 kube-apiserver的service配置文件</strong></p>
|
||
<p>serivce配置文件<code>/usr/lib/systemd/system/kube-apiserver.service</code>内容：</p>
|
||
<pre><code class="lang-ini">[Unit]
|
||
Description=Kubernetes API Service
|
||
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
|
||
After=network.target
|
||
After=etcd.service
|
||
|
||
[Service]
|
||
EnvironmentFile=-/etc/kubernetes/config
|
||
EnvironmentFile=-/etc/kubernetes/apiserver
|
||
ExecStart=/usr/local/bin/kube-apiserver \
|
||
$KUBE_LOGTOSTDERR \
|
||
$KUBE_LOG_LEVEL \
|
||
$KUBE_ETCD_SERVERS \
|
||
$KUBE_API_ADDRESS \
|
||
$KUBE_API_PORT \
|
||
$KUBELET_PORT \
|
||
$KUBE_ALLOW_PRIV \
|
||
$KUBE_SERVICE_ADDRESSES \
|
||
$KUBE_ADMISSION_CONTROL \
|
||
$KUBE_API_ARGS
|
||
Restart=on-failure
|
||
Type=notify
|
||
LimitNOFILE=65536
|
||
|
||
[Install]
|
||
WantedBy=multi-user.target
|
||
</code></pre>
|
||
<p><code>/etc/kubernetes/config</code>文件的内容为：</p>
|
||
<pre><code class="lang-ini"><span class="hljs-comment">###</span>
|
||
<span class="hljs-comment"># kubernetes system config</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment"># The following values are used to configure various aspects of all</span>
|
||
<span class="hljs-comment"># kubernetes services, including</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment"># kube-apiserver.service</span>
|
||
<span class="hljs-comment"># kube-controller-manager.service</span>
|
||
<span class="hljs-comment"># kube-scheduler.service</span>
|
||
<span class="hljs-comment"># kubelet.service</span>
|
||
<span class="hljs-comment"># kube-proxy.service</span>
|
||
<span class="hljs-comment"># logging to stderr means we get it in the systemd journal</span>
|
||
<span class="hljs-attr">KUBE_LOGTOSTDERR</span>=<span class="hljs-string">"--logtostderr=true"</span>
|
||
|
||
<span class="hljs-comment"># journal message level, 0 is debug</span>
|
||
<span class="hljs-attr">KUBE_LOG_LEVEL</span>=<span class="hljs-string">"--v=0"</span>
|
||
|
||
<span class="hljs-comment"># Should this cluster be allowed to run privileged docker containers</span>
|
||
<span class="hljs-attr">KUBE_ALLOW_PRIV</span>=<span class="hljs-string">"--allow-privileged=true"</span>
|
||
|
||
<span class="hljs-comment"># How the controller-manager, scheduler, and proxy find the apiserver</span>
|
||
<span class="hljs-comment">#KUBE_MASTER="--master=http://sz-pg-oam-docker-test-001.tendcloud.com:8080"</span>
|
||
<span class="hljs-attr">KUBE_MASTER</span>=<span class="hljs-string">"--master=http://172.20.0.113:8080"</span>
|
||
</code></pre>
|
||
<p>该配置文件同时被kube-apiserver、kube-controller-manager、kube-scheduler、kubelet、kube-proxy使用。</p>
|
||
<p>apiserver配置文件<code>/etc/kubernetes/apiserver</code>内容为：</p>
|
||
<pre><code class="lang-Ini"><span class="hljs-comment">###</span>
|
||
<span class="hljs-comment">## kubernetes system config</span>
|
||
<span class="hljs-comment">##</span>
|
||
<span class="hljs-comment">## The following values are used to configure the kube-apiserver</span>
|
||
<span class="hljs-comment">##</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## The address on the local server to listen to.</span>
|
||
<span class="hljs-comment">#KUBE_API_ADDRESS="--insecure-bind-address=sz-pg-oam-docker-test-001.tendcloud.com"</span>
|
||
<span class="hljs-attr">KUBE_API_ADDRESS</span>=<span class="hljs-string">"--advertise-address=172.20.0.113 --bind-address=172.20.0.113 --insecure-bind-address=172.20.0.113"</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## The port on the local server to listen on.</span>
|
||
<span class="hljs-comment">#KUBE_API_PORT="--port=8080"</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## Port minions listen on</span>
|
||
<span class="hljs-comment">#KUBELET_PORT="--kubelet-port=10250"</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## Comma separated list of nodes in the etcd cluster</span>
|
||
<span class="hljs-attr">KUBE_ETCD_SERVERS</span>=<span class="hljs-string">"--etcd-servers=https://172.20.0.113:2379,https://172.20.0.114:2379,https://172.20.0.115:2379"</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## Address range to use for services</span>
|
||
<span class="hljs-attr">KUBE_SERVICE_ADDRESSES</span>=<span class="hljs-string">"--service-cluster-ip-range=10.254.0.0/16"</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## default admission control policies</span>
|
||
<span class="hljs-attr">KUBE_ADMISSION_CONTROL</span>=<span class="hljs-string">"--admission-control=ServiceAccount,NamespaceLifecycle,NamespaceExists,LimitRanger,ResourceQuota"</span>
|
||
<span class="hljs-comment">#</span>
|
||
<span class="hljs-comment">## Add your own!</span>
|
||
<span class="hljs-attr">KUBE_API_ARGS</span>=<span class="hljs-string">"--authorization-mode=RBAC --runtime-config=rbac.authorization.k8s.io/v1beta1 --kubelet-https=true --experimental-bootstrap-token-auth --token-auth-file=/etc/kubernetes/token.csv --service-node-port-range=30000-32767 --tls-cert-file=/etc/kubernetes/ssl/kubernetes.pem --tls-private-key-file=/etc/kubernetes/ssl/kubernetes-key.pem --client-ca-file=/etc/kubernetes/ssl/ca.pem --service-account-key-file=/etc/kubernetes/ssl/ca-key.pem --etcd-cafile=/etc/kubernetes/ssl/ca.pem --etcd-certfile=/etc/kubernetes/ssl/kubernetes.pem --etcd-keyfile=/etc/kubernetes/ssl/kubernetes-key.pem --enable-swagger-ui=true --apiserver-count=3 --audit-log-maxage=30 --audit-log-maxbackup=3 --audit-log-maxsize=100 --audit-log-path=/var/lib/audit.log --event-ttl=1h"</span>
|
||
</code></pre>
|
||
<ul>
|
||
<li><code>--authorization-mode=RBAC</code> 指定在安全端口使用 RBAC 授权模式，拒绝未通过授权的请求；</li>
|
||
<li>kube-scheduler、kube-controller-manager 一般和 kube-apiserver 部署在同一台机器上，它们使用<strong>非安全端口</strong>和 kube-apiserver通信;</li>
|
||
<li>kubelet、kube-proxy、kubectl 部署在其它 Node 节点上，如果通过<strong>安全端口</strong>访问 kube-apiserver，则必须先通过 TLS 证书认证，再通过 RBAC 授权；</li>
|
||
<li>kube-proxy、kubectl 通过在使用的证书里指定相关的 User、Group 来达到通过 RBAC 授权的目的；</li>
|
||
<li>如果使用了 kubelet TLS Boostrap 机制，则不能再指定 <code>--kubelet-certificate-authority</code>、<code>--kubelet-client-certificate</code> 和 <code>--kubelet-client-key</code> 选项，否则后续 kube-apiserver 校验 kubelet 证书时出现 ”x509: certificate signed by unknown authority“ 错误；</li>
|
||
<li><code>--admission-control</code> 值必须包含 <code>ServiceAccount</code>；</li>
|
||
<li><code>--bind-address</code> 不能为 <code>127.0.0.1</code>；</li>
|
||
<li><code>runtime-config</code>配置为<code>rbac.authorization.k8s.io/v1beta1</code>，表示运行时的apiVersion；</li>
|
||
<li><code>--service-cluster-ip-range</code> 指定 Service Cluster IP 地址段，该地址段不能路由可达；</li>
|
||
<li>缺省情况下 kubernetes 对象保存在 etcd <code>/registry</code> 路径下，可以通过 <code>--etcd-prefix</code> 参数进行调整；</li>
|
||
</ul>
|
||
<p>完整 unit 见 <a href="../systemd/kube-apiserver.service">kube-apiserver.service</a></p>
|
||
<p><strong>启动kube-apiserver</strong></p>
|
||
<pre><code class="lang-bash">systemctl daemon-reload
|
||
systemctl <span class="hljs-built_in">enable</span> kube-apiserver
|
||
systemctl start kube-apiserver
|
||
systemctl status kube-apiserver
|
||
</code></pre>
|
||
<h2 id="配置和启动-kube-controller-manager">配置和启动 kube-controller-manager</h2>
|
||
<p><strong>创建 kube-controller-manager的serivce配置文件</strong></p>
|
||
<p>文件路径<code>/usr/lib/systemd/system/kube-controller-manager.service</code></p>
|
||
<pre><code class="lang-ini">Description=Kubernetes Controller Manager
|
||
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
|
||
|
||
[Service]
|
||
EnvironmentFile=-/etc/kubernetes/config
|
||
EnvironmentFile=-/etc/kubernetes/controller-manager
|
||
ExecStart=/usr/local/bin/kube-controller-manager \
|
||
$KUBE_LOGTOSTDERR \
|
||
$KUBE_LOG_LEVEL \
|
||
$KUBE_MASTER \
|
||
$KUBE_CONTROLLER_MANAGER_ARGS
|
||
Restart=on-failure
|
||
LimitNOFILE=65536
|
||
|
||
[Install]
|
||
WantedBy=multi-user.target
|
||
</code></pre>
|
||
<p>配置文件<code>/etc/kubernetes/controller-manager</code>。</p>
|
||
<pre><code class="lang-ini"><span class="hljs-comment">###</span>
|
||
<span class="hljs-comment"># The following values are used to configure the kubernetes controller-manager</span>
|
||
|
||
<span class="hljs-comment"># defaults from config and apiserver should be adequate</span>
|
||
|
||
<span class="hljs-comment"># Add your own!</span>
|
||
<span class="hljs-attr">KUBE_CONTROLLER_MANAGER_ARGS</span>=<span class="hljs-string">"--address=127.0.0.1 --service-cluster-ip-range=10.254.0.0/16 --cluster-name=kubernetes --cluster-signing-cert-file=/etc/kubernetes/ssl/ca.pem --cluster-signing-key-file=/etc/kubernetes/ssl/ca-key.pem --service-account-private-key-file=/etc/kubernetes/ssl/ca-key.pem --root-ca-file=/etc/kubernetes/ssl/ca.pem --leader-elect=true"</span>
|
||
</code></pre>
|
||
<ul>
|
||
<li><code>--service-cluster-ip-range</code> 参数指定 Cluster 中 Service 的CIDR范围，该网络在各 Node 间必须路由不可达，必须和 kube-apiserver 中的参数一致；</li>
|
||
<li><code>--cluster-signing-*</code> 指定的证书和私钥文件用来签名为 TLS BootStrap 创建的证书和私钥；</li>
|
||
<li><code>--root-ca-file</code> 用来对 kube-apiserver 证书进行校验，<strong>指定该参数后，才会在Pod 容器的 ServiceAccount 中放置该 CA 证书文件</strong>；</li>
|
||
<li><p><code>--address</code> 值必须为 <code>127.0.0.1</code>，因为当前 kube-apiserver 期望 scheduler 和 controller-manager 在同一台机器，否则：</p>
|
||
<pre><code class="lang-bash"> $ kubectl get componentstatuses
|
||
NAME STATUS MESSAGE ERROR
|
||
scheduler Unhealthy Get http://127.0.0.1:10251/healthz: dial tcp 127.0.0.1:10251: getsockopt: connection refused
|
||
controller-manager Healthy ok
|
||
etcd-2 Healthy {<span class="hljs-string">"health"</span>: <span class="hljs-string">"true"</span>}
|
||
etcd-0 Healthy {<span class="hljs-string">"health"</span>: <span class="hljs-string">"true"</span>}
|
||
etcd-1 Healthy {<span class="hljs-string">"health"</span>: <span class="hljs-string">"true"</span>}
|
||
</code></pre>
|
||
<p> 如果有组件report unhealthy请参考：<a href="https://github.com/kubernetes-incubator/bootkube/issues/64" target="_blank">https://github.com/kubernetes-incubator/bootkube/issues/64</a></p>
|
||
</li>
|
||
</ul>
|
||
<p>完整 unit 见 <a href="../systemd/kube-controller-manager.service">kube-controller-manager.service</a></p>
|
||
<h3 id="启动-kube-controller-manager">启动 kube-controller-manager</h3>
|
||
<pre><code class="lang-bash">systemctl daemon-reload
|
||
systemctl <span class="hljs-built_in">enable</span> kube-controller-manager
|
||
systemctl start kube-controller-manager
|
||
</code></pre>
|
||
<h2 id="配置和启动-kube-scheduler">配置和启动 kube-scheduler</h2>
|
||
<p><strong>创建 kube-scheduler的serivce配置文件</strong></p>
|
||
<p>文件路径<code>/usr/lib/systemd/system/kube-scheduler.service</code>。</p>
|
||
<pre><code class="lang-ini">[Unit]
|
||
Description=Kubernetes Scheduler Plugin
|
||
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
|
||
|
||
[Service]
|
||
EnvironmentFile=-/etc/kubernetes/config
|
||
EnvironmentFile=-/etc/kubernetes/scheduler
|
||
ExecStart=/usr/local/bin/kube-scheduler \
|
||
$KUBE_LOGTOSTDERR \
|
||
$KUBE_LOG_LEVEL \
|
||
$KUBE_MASTER \
|
||
$KUBE_SCHEDULER_ARGS
|
||
Restart=on-failure
|
||
LimitNOFILE=65536
|
||
|
||
[Install]
|
||
WantedBy=multi-user.target
|
||
</code></pre>
|
||
<p>配置文件<code>/etc/kubernetes/scheduler</code>。</p>
|
||
<pre><code class="lang-Ini"><span class="hljs-comment">###</span>
|
||
<span class="hljs-comment"># kubernetes scheduler config</span>
|
||
|
||
<span class="hljs-comment"># default config should be adequate</span>
|
||
|
||
<span class="hljs-comment"># Add your own!</span>
|
||
<span class="hljs-attr">KUBE_SCHEDULER_ARGS</span>=<span class="hljs-string">"--leader-elect=true --address=127.0.0.1"</span>
|
||
</code></pre>
|
||
<ul>
|
||
<li><code>--address</code> 值必须为 <code>127.0.0.1</code>，因为当前 kube-apiserver 期望 scheduler 和 controller-manager 在同一台机器；</li>
|
||
</ul>
|
||
<p>完整 unit 见 <a href="../systemd/kube-scheduler.service">kube-scheduler.service</a></p>
|
||
<h3 id="启动-kube-scheduler">启动 kube-scheduler</h3>
|
||
<pre><code class="lang-bash">systemctl daemon-reload
|
||
systemctl <span class="hljs-built_in">enable</span> kube-scheduler
|
||
systemctl start kube-scheduler
|
||
</code></pre>
|
||
<h2 id="验证-master-节点功能">验证 master 节点功能</h2>
|
||
<pre><code class="lang-bash">$ kubectl get componentstatuses
|
||
NAME STATUS MESSAGE ERROR
|
||
scheduler Healthy ok
|
||
controller-manager Healthy ok
|
||
etcd-0 Healthy {<span class="hljs-string">"health"</span>: <span class="hljs-string">"true"</span>}
|
||
etcd-1 Healthy {<span class="hljs-string">"health"</span>: <span class="hljs-string">"true"</span>}
|
||
etcd-2 Healthy {<span class="hljs-string">"health"</span>: <span class="hljs-string">"true"</span>}
|
||
</code></pre>
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